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NITED STATES ATENT Fries.

CHARLES WV. COLLYER AND WILLIAM C. COLLYER, OF LYNN, MASS, AS- SIGNORSOF ONE-THIRD TO CHARLES H. YVARD, OF SAME PLACE.

SEAM-RUBBING MACHINE.

SPECIFICATION forming part of Letters Patent No. 324,085, dated August11, 1885.

Application filed May 4, 1885.

To all whom it may concern.-

Be it known that we, CHARLES W. OoLLYER and WILLIAM G. OoLLYER, of Lynn,county of Essex, State of Massachusetts, have in-- vented an Improvementin Seam-Rubbing Machines, ofv which the following description, inconnection with the accompanying drawings, is a specification, likeletters on the drawings representing like parts.

This invention has for its object to produce a mechanism forautomatically rolling down and finishing the seams in leather-work.

Our improved machine contains a horn or support for the work, andcooperating with 1 it is a tool-carrying crosshead having a roller,which acts both to roll down and to feed the leather along over the hornor work-support. The tool-carrying cross-head is reciprocatedhorizontally in the direction of the feed of the leather over the horn,and the said cross-head has its bearing in a guide-box free to rise andfall to a limited extent under the action of a spring, which is shown asmade adjustable, to thus vary the pressure of the tool or its rollerupon the'leather. The tool is provided with one or more clamps orguides, which aid in keeping the leather in place on the horn orwork-support.

Our invention consists, essentially, in a seam rolling and finishingmachine containing a horn or work-support on which the leather havingthe seam to be rolled down or out is made to rest,and areciprocatinghead having a wheel,'which bears upon the edges of the ma- 3 5 terial tobe rolled, the said wheel rolling'over the material with which it is incontact while the head is moved in one direction, but being locked orrestrained from rotation while the head is being moved in the oppositedirection, 40 thus enabling the said Wheel during the stroke of the headin one direction, and only in one direction, to feed the stock over thehorn or work-support,the dragging of the face side of the seamhorizontally along the horn in the 5 direction of its length while theroller is locked pressing or ironing the seam, substantiall y as will bedescribed.

Figure 1 in front elevation represents a seam rubbing or finishingmachine embodying our improvements; Fig. 2, a partial section of Fig. 1in the dotted line me, the tool being omitted;

(No model.)

Fig. 3, a partial section of the same figure in the line 00 x, the toolbeing omitted. Fig. 4 is an enlarged right-hand side elevation of thetool alone; Fig. 5, a partial left-hand side elevation of the tool andthe upper part of the horn or work-support; Fig. 6, a section in theline 00 wfiFig. 4; and Fig. 7 shows details of the adjustable crank-pinand plate.

The frame-work herein shown consists, essentially, of arched portions AA, rising from a base-plate, A, the central portion of the arch portionbeing cut outto provide a space for the vertically-movable box or guideA retained in the frame-work between the plates A and A A, connected,respectively, by screws 2 and 3, to the frame-work, the said box orguide A being normally held down toward or against the plate A by thespring B, resting on the follower B, and made adjustable by the screw B,resting against the washer B lying on the top of the said spring. Thebox or guide A receives the tool-carrying cross-head 0, having a slot,4, in which is placed a slide-block, 5, pivoted upon a crankpin, 6,connected with a bar, 7, placed in guides in the face of the disk at,attached to the rotating shaft 0, the bar carrying the crankpin 6 beingmade adjustable by the screws 8, (see Fig. 7,) adjustment of thecrankpin 6 toward and from the center of the plate a and shaft 0altering the length of the stroke of the tool-carrying cross-head andits tool, the shank of which is secured in the socket 9 by a screw, 10.

The horn or work-support D (shown in end view, Fig. 1, and side view,Fig. 5) is convexed or curved at its top to better support the leather,the seam in which, as for the heelquarters of the shoe, is curved. Thehorn is pivoted at 12 in a slot in the top part, D, of the post D D thesaid top part being made vertically adjustable with relation to the footD by the screw D", held in the said base or foot, so as to rotate butnot reciprocate in the said foot, the threaded part of the said screwengaging screw-threads cut into the top part,

. the post.

a hole in the shank of the horn or work-support. If desired, this hornor work-support may be made integral with the top part, D', of Thevertical adjustment of the horn or work-support enables it to be placedat the proper height, having regard to the thickness of the stock.

The tool consists, essentially, of a head, I), and a wheel or roller,I), placed therein, and keyed or otherwise attached to a shaft, 5 havingits bearings in the said head b. The shaft 1) has a flange, b, which isprovided with ratchetteeth 14, (see Figs. 1, 5, and 6,) which areengaged by a spring-held detent, 15, pivoted on the head 1). Theshaft 1) near its opposite end, outside the head I), has keyed orotherwise suitably fastened to it a ratchet, c, and placed loosely onthe said shaft at the side of the said ratchet is a pawl-carrier, heldin place by the washer c and screw 0, the said pawl-carrier havingpivoted on it a pawl, c, acted upon by a spring, 0 the said pawlengaging the ratchet c, and as the pawl-carrier is moved rotating'theshaft and the wheel or roller 6. The head I) has on opposite sideslaterallyprojecting cars 16 16, which form bearings forshaftsf, on whicharehung clamps or holders f, cooperating with the horn or work-supportD, to keep the work in position to be operated upon by the wheel orroller 1); and said clamps or holders are pressed toward each other, andhence against the work, by springs 18, coiled about the shafts f, andhaving free ends acting against the said clamps or holders. Setscrews 17are inserted in one of the cars 16 on each side, to impinge against theshafts f to hold them in place. The pawlcarrier has connected with it alink, r1, having its fulcrum d. on a bracket, (1", herein shown as abent red, one end of which enters a guide, (1, forming part of the headI), the said bracket being surrounded by a spiral spring, (1. The innerend of the spiral spring d abuts against a pin, (1, and the outer end ofthe said spring abuts against a stationary arm, d the lower forked endof which embraces the said rod between the end of the spring and the pin0. \Vith the shaft I), )rovided with a ratchettoothed flange, b",engaged by the detent, and the ratchet engaged by the pawl of thepawlcarrier, (the pawl-carrier being connected with a suitable operatingdevice, such, for instance, as the pivoted link,) the pawl of thepawl-carrier in engagement with the teeth of the ratchet-wheel 0 willcause the rotation of the shaft 1) and of the wheel or roller 1) whilethe head of the tool is being moved backward, or in the direction of thearrow in Fig. 4, the wheel or roller then running over the stock restingbetween it and the horn or support D, and rolling down the edges of theleather or other material near the line of stitches constituting theseam; but as the head bis moved in the opposite or forward direction bythe crank pin in the tool carrying crosshead, the pawla" will slip backover the teeth of the ratchet c, and at the same time the detent inengagement with the ratchet-teeth 14: of the flange I)" of the shaft Ifwill prevent the rotation of the wheel or roller, and hold the latter infixed position with relation to the head I), so that the wheel orroller 1) in engagement with the stock or material rolled down at theprevious backward stroke of the head I) will carry the stock or materialforward with it, thus feeding the stock or material over the horn orwork-support. The roller 1) rolls freely over the material while thecarriage moves toward the operator, the pawl c in engagement with theratchet c on the axle of the roller causing it to move positively. Theteeth 14 of the ratchet-toothed head (see Fig. 5) are in number one lessthan those of the ratchet, so that as the carriage starts back the wheelrotates in the reverse direction for the extent of one tooth, and thenthe roller becomes fixed with relation to the carriage and drags thematerial over the smooth face of the horn or support, the latter rubbingagainst what is to be the face side of the seam, ironing the same. Theupper edge of the horn or support 1) will be provided with a keel oredge to partially enter between the pieces of leather next the stitcheswhen a piping or welt is not used, such keel being shown in Fig. 1; butif a piping or welt is used between the right or face sides of thestock, then the horn or work-support will be provided with a grooveinstead of with a keel. The periphery of the wheel b will in practicepreferably be provided with an annular groove milled at its bottom.

\Ve claim-- 1. In a machine for rolling down and finishing seams inleather-work, a horn or work support combined with a reciprocating headhaving a shaft and wheel or roller, and means, substantially asdescribed, to rotate the roller to roll down the seam whilethe head androller move in one direction, and to feed the mate rial over the hornwhile the head and wheel' are moved in the opposite direction,substantially as described.

2. In a machine for rolling down and finishing seams in leather-work,avertically-adjustable horn or worksupport, combined with areciprocating head having a shalt and wheel or roller, and means,substantially as described, to rotate the said roller to roll down theseam while the head and roller move in one direction, and to feed thematerial over the horn while the head and wheel are moved in theopposite direction, substantially as described.

3. In a machine for rolling down and finishing seams, a horn orwork-support, atool provided with a wheel or roller, and means,substantially as described, to rotate the said roller, and a cross heador slide to carry the said tool, combined with a rotating shaft and acrank and crank-pin to reciprocate the said cross head or slide,substantially as described.

4. In a machine for rolling down and finishing seams, a horn or supportforthe work, the shaft 0, its attached crank and pin, and the IIC guideA and cross-head supported therein, and the tool composed of a head andwheel or roller, combined with a spring acting upon the guide A", toregulate the pressure of the tool upon the material, substantially asdescribed.

5. The head and the wheel or roller and its shaft b provided withratchet-teeth 14, combined with the detent to operate it, substantiallyas described.

6. The head, the shaft b and the wheel or roller thereon, and theratchet-wheel, combined 7 with the pawl and pawl-carrier to rotate theleather-work, a reciprocating head, a shaft therein provided withratchet-teeth, and a roller fast on the said shaft, combined with aratchet-wheel, also fast thereon, and with a pawl-carrier and pawl toengage and rotate 30 the said ratchet and shaft and wheelintermittingly, the said pawl and ratchet effecting the rotation of thewheel while the head is moved in one direction, the detent preventingthe rotation of the wheel when the head is moved in 3 5 the oppositedirection, the pawl of the pawlcarrier at such time clicking or slippingback over the ratchet-teeth, substantially as described.

10. The head, and the pivoted clamps or 0 holders f, and the springs,combined with the horn or work-support, substantially as described.

In testimony whereof we have signed our names to this specification inthe presence of 45 two subscribing witnesses.

CHARLES W. COLLYER. WILLIAM G. COLLYER.

Witnesses:

Gno. W. GREGORY, W. H. SIGSTON.

